As mentioned in another thread I am swapping the heads on my wrangler for mpi. It was suggested that I put the auto tranny in as well. So, I am wondering what the general consensus is. I have always been a manual tranny guy so it would be a change for me. If you vote auto, please let me know why. I currently have a T-18 with a 6.32 granny first. The auto would be an aw4. Either would be followed by an Atlas II 4.3 and 4.10 gears.